Question

Select all the expressions that are irrational.

A. −3–√+2
B. 2–√.3–√
C. 27−−√.3–√
D. 57–√+2−57–√
E. 6–√+32–√

Answer 1

A. −3–√+2

B. 2–√.3–√

C. 27−−√.3–√

D. 57–√+2−57–√

E. 6–√+32–√

All the expressions are irrational because they all contain the square root of a number that cannot be represented as a ratio of two integers. The square root of a number is considered irrational if it cannot be simplified to a fraction of two integers.

Explanation: